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Summary of Contents for Fujitsu AR*C72LHTA
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Page 1: Duct Type
AIR CONDITIONER Duct type DESIGN & TECHNICAL MANUAL SINGLE INDOOR C72LHTA C90LHTA OUTDOOR A72LALT A90LALT ... - Page 2 1. INDOOR UNIT DUCT TYPE : ARC72LHTA ARC90LHTA DTR_AR061E_03 2013.11.08...
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Page 3: Table Of Contents
CONTENTS 1. INDOOR UNIT FEATURES ......................01 - 01 WIRED REMOTE CONTROLLER ........... 01 - 06 SPECIFICATIONS ..................01 - 08 DIMENSIONS ....................01 - 09 WIRING DIAGRAMS .................. 01 - 12 CAPACITY TABLE ..................01 - 13 6-1. COOLING CAPACITY ................ -
Page 4: Indoor Unit
FEATURES MODEL „ „ ARC72LHTA / AOA72LALT ARC72LHTA ARC90LHTA / AOA90LALT ARC90LHTA FEATURES „ „ Significantly improved EER/COP „ Significantly improved Hi-efficiency is realized by the use of a ALL-DC components, inverter technology, and large heat exchanger. Cooling Heating Heating COP Cooling EER Previous increase! - Page 5 Space saving and compact size „ Compact size has been achieved by significantly reducing the width of the outdoor units compared to previous models. New model Previous model reduction Static pressure selection „ 5 Static Pressure modes are available. Improvement and design flexibility has allowed multiple fan speeds and static pressure modes. •...
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Page 6: Outdoor Unit Quiet Operation
Outdoor unit quiet operation „ Low noise mode (Optional parts: UTY-XWZXZ2) Introduction of a low outdoor noise operation mode allow the outdoor unit to have two quiet mode operation settings. * Performance may drop depending on the outside air temperature condition, etc. 1) Level1 (Rated noise value -3dB) 2) Level2 (Rated noise value -5dB) Peak cut operation... - Page 7 Easy service & maintenance „ Outdoor unit Easy-to-read 7-segment LED display which explains operational and trouble status Consolidated electrical components make maintenance easy Movable PCB panel that allows for easier maintenance work behind the PCB Maintenance of electrical components, valves, and compressor parts from Split front panel allows for the front is possible.
- Page 8 Adoption of blue fin heat exchanger „ Corrosion resistant of the heat exchanger has been improved by the introduction of blue fin treatment to the outdoor unit’s heat exchanger. Blue fin heat exchanger Cobalt Blue protection Standard chromate protection Aluminium base material Hydrophilic coating Improvement of piping length „...
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Page 9: Wired Remote Controller
WIRED REMOTE CONTROLLER FEATURES „ „ Various timer setup (ON / OFF / WEEKLY) are possible. „ Equipped with weekly timer as standard function.(2 times Start / Stop „ per day for a week) When setting up a timer, operation mode and a temperature setup ... -
Page 10: Wiring Specifications
FUNCTIONS „ „ START/STOP button Pressed to start and stop operation. SET TEMP. button Selects the setting temperature. MODE button Selects the operating mode (AUTO, HEAT, FAN, COOL, DRY). FAN button Selects the fan speed (AUTO, LOW, MED, HIGH). ECONOMY button Turns the economy efficient mode on and off. -
Page 11: Specifications
SPECIFICATIONS Type Ducted model inverter heatpump Model name ARC72LHTA ARC90LHTA Power source 230V~ 50Hz Available voltage range 198-264V~ 50Hz 20.3 25.0 Rated Btu/h 69300 85300 Cooling 10.8 - 23.5 11.2 - 28.0 Min. - Max. Btu/h 36800 - 80200 38200 - 95500 Capacity 22.6 28.0... -
Page 12: Dimensions
DIMENSIONS MODEL : ARC72LHTA „ „ (Unit : mm) - (01 - 09) -... - Page 13 MODEL : ARC90LHTA „ „ (Unit : mm) - (01 - 10) -...
- Page 14 INSTALLATION PLACE „ „ (Unit : mm) (a) When service access will be carried out above the indoor unit a recommended installation space of 450mm is required. more Service space (b) Installation by which service is carried out from the bottom of the unit 20 or Service more...
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Page 15: Wiring Diagrams
WIRING DIAGRAMS MODEL : ARC72LHTA, ARC90LHTA „ „ - (01 - 12) -... -
Page 16: Capacity Table
CAPACITY TABLE 6-1. COOLING CAPACITY MODEL : ARC72LHTA „ „ 71.7 Indoor temperature °CDB °CWB °CDB 17.64 15.08 3.23 19.65 15.17 3.28 20.32 16.49 3.29 21.66 16.54 3.33 22.33 17.87 3.34 23.67 17.80 3.38 25.01 18.96 3.41 17.61 15.05 3.28 19.61 15.14 3.33 20.28 16.46... -
Page 17: Heating Capacity
6-2. HEATING CAPACITY MODEL : ARC72LHTA „ „ 71.7 Indoor temperature °CDB °CDB °CWB 17.79 7.07 17.37 7.22 16.95 7.37 16.52 7.52 16.10 7.66 20.37 7.45 19.89 7.60 19.40 7.76 18.92 7.91 18.43 8.07 22.32 7.68 21.79 7.84 21.26 8.00 20.73 8.16 20.20... -
Page 18: Fan Performance And Capacity
FAN PERFORMANCE AND CAPACITY MODEL : ARC72LHTA „ „ Q-h Characteristic curve HSP mode3 Upper limit Hi(HSP mode3) Med(HSP mode3) HSP mode3 Lower limit Lo(HSP mode3) Normal SP mode Hi(Normal SP mode) Upper limit LSP mode Med(Normal SP mode) Upper limit Med(LSP mode) Normal SP mode Lower limit... - Page 19 MODEL : ARC72LHTA „ „ Cooling „ Capacity 3,400 3,600 3,800 4,000 4,200 4,400 4,600 4,800 5,000 (m Airflow Heating „ Capacity 3,400 3,600 3,800 4,000 4,200 4,400 4,600 4,800 5,000 Airflow - (01 - 16) -...
- Page 20 MODEL : ARC90LHTA „ „ Q-h Characteristic curve HSP mode3 Upper limit Hi(HSP mode3) Med(HSP mode3) HSP mode3 Lower limit Lo(HSP mode3) Normal SP mode Hi(Normal SP mode) Upper limit LSP mode Med(Normal SP mode) Upper limit Med(LSP mode) Normal SP mode Lower limit Lo(Normal SP mode) Hi(LSP mode)
- Page 21 MODEL : ARC90LHTA „ „ Cooling „ Capacity 3,700 3,900 4,100 4,300 4,500 4,700 4,900 5,100 5,300 5,500 Airflow Heating „ Capacity 3,700 3,900 4,100 4,300 4,500 4,700 4,900 5,100 5,300 5,500 Airflow - (01 - 18) -...
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Page 22: Operation Noise
OPERATION NOISE 8-1. NOISE LEVEL CURVE Condition Static pressure : 72Pa MODEL : ARC72LHTA „ „ Static pressure mode : Normal Cooling Heating „ „ NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 HIGH NC-45 NC-45 HIGH NC-40 NC-40 NC-35 NC-35 NC-30 NC-30... -
Page 23: Sound Level Check Point
8-2. SOUND LEVEL CHECK POINT Measuring duct Measuring duct Set the static pressure as rating in this area Microphone Microphone - (01 - 20) -... -
Page 24: Electric Characteristics
ELECTRIC CHARACTERISTICS AR C72LHTA Model name AR C90LHTA Voltage 230 ~ Power supply Frequency Max. operating current (Indoor unit) Connection cable Wiring spec. (Indoor unit to outdoor unit) Limited wiring length 50 or less 50 to 76 Note: Wiring specification 1. -
Page 25: Safety Devices
SAFETY DEVICES Model Protection form AR C72LHTA AR C90LHTA Circuit protection Current fuse (PCB) 250V 3.15A +15°C 100°C -10°C Fan motor protection Thermal protection program +15°C 95°C -10°C - (01 - 22) -... -
Page 26: External Input & Output
EXTERNAL INPUT & OUTPUT INPUT OUTPUT Connector REMARKS CONTROL INPUT — CN103 (OPERATION/STOP) — OPERATION STATUS CN100 See external — ERROR STATUS CN101 input/output settings for details. — FRESH AIR CONTROL CN161 — AUXILIARY HEATER CN160 11-1. EXTERNAL INPUT CONTROL INPUT (Operation/Stop) „... -
Page 27: External Output
11-2. EXTERNAL OUTPUT OPERATION STATUS OUTPUT „ „ An air conditioner operation status signal can be output. Circuit diagram example „ Indoor Connected unit control PC board Connector Ex.)Relay unit Ex.)Display 24V DC Relay power supply *10 m Signal Field supply * Make the distance from the PC board to the connected unit within 10m. - Page 28 ERROR STATUS OUTPUT „ „ An air conditioner condition normal/error status signal can be output. Circuit diagram example „ Indoor Connected unit control PC board Connector Ex.)Relay unit Ex.)Display 24V DC Relay power supply *10 m Signal Field supply * Make the distance from the PC board to the connected unit within 10m. Relay spec.
- Page 29 FRESH AIR CONTROL OUTPUT „ „ A signal linked to air conditioner indoor fan ON can be output. * However, signal becomes OFF during cold air prevention control operation. Circuit diagram example „ Indoor Connected unit control PC board Ex.) Fan Ex.) Relay unit 12 V Connector...
- Page 30 AUXILIARY HEATER OUTPUT „ „ A signal is outputed from Connector when indoor fan and compressor is turned on under heating operation. * Signal output performance specifications are as Tr-Ts shown on the right Tr-Ts = -1°C Ex. When Set Temperature(Ts) is 22°C; Tr-Ts = -3°C ▪...
- Page 31 CAUTION Please place an external a heater between the indoor unit and the ductwork. Please be sure to use delay control of the fan. External Indoorunit Heater Supply air Return air Parts (Optional) „ Model name UTD-ECS5A Wire (Heater output) - (01 - 28) -...
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Page 32: Function Settings
FUNCTION SETTINGS 12-1. INDOOR UNIT INDOOR UNIT DIP-SW50 Remote controller address setting JM40 Setting forbidden Jumper Wire JM41 JM42 Fan delay setting SWITCH POSITION „ „ MAIN PCB JM42 JM41 JM40 SW50 2 3 4 DIP-SW SETTING „ „ Remote controller address setting (SW50) „... - Page 33 JUMPER WIRE SETTING „ „ Fan delay setting (JM42) „ When the indoor unit is stopped while operating in conjunction with auxiliary heater, the indoor unit fan operation will continue for one minute.. ( Factory setting) JM 42 JM state Connect Invalidity ...
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Page 34: Indoor Unit (Setting By Remote Controller)
12-2. INDOOR UNIT (Setting by remote controller) • The function settings of the control of the indoor unit can be changed by this procedure according to the installation conditions. Incorrect settings can cause the indoor unit to malfunction. • After the power is turned on, perform The Function Setting according to the installation conditions using the remote controller. - Page 35 (5) Press the TIMER SET button to confirm the setting. Press the TIMER SET button for a few seconds until the setting value stops flashing. If the setting value display changes or if “- -” is displayed when the flashing stops, the setting value has not been set correctly. (An invalid setting value may have been selected for the indoor unit.) (6) Repeat steps 2 to 5 to perform additional settings.
- Page 36 3) Room temperature control for heating Depending on the installed environment, correction of the room temperature sensor may be required. Select the appropriate control setting according to the installed environment.. ( . . .Factory setting) Function Setting Description Setting Value Numbe ...
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Page 37: Wired Remote Controller
12-3. WIRED REMOTE CONTROLLER Can not be used. (Do not change) Dual remote controller setting Can not be used. (Do not change) DIP SW Can not be used. (Do not change) Can not be used. (Do not change) Memory backup setting SWITCH POSITION „... -
Page 38: Optional Parts
OPTIONAL PARTS 13-1. CONTROLLER Exterior Parts name Model No. Summary Large and full-dot liquid crystal Wired UTY- screen, wide and large keys remote easy to press, user-intuitive RVNM controller arrow key. The room temperature can be Wired UTY- controlled by being detected remote RNNM the temperature accurately... - Page 39 2. OUTDOOR UNIT SINGLE TYPE : AOA72LALT AOA90LALT DTR_AO133E_02 2013.11.08...
- Page 40 CONTENTS 2. OUTDOOR UNIT SPECIFICATIONS ..................... 02 - 01 DIMENSIONS ......................02 - 02 INSTALLATION PLACE ................02 - 07 3-1. WHEN INSTALL NEAR BY LIMITED HEIGHT WALL ......02 - 07 3-2. WHEN INSTALL NEAR BY UNLIMITED HEIGHT WALL .....
- Page 41 CONTENTS 2. OUTDOOR UNIT 14. FUNCTION SETTING ..................02 - 25 14-1. FIELD SETTING SWITCHES ..............02 - 25 14-2. FUNCTION SETTINGS ................. 02 - 25 14-2-1. SETTING METHOD ................... 02 - 26 14-2-2. PEAK CUT MODE ..................02 - 28 14-2-3.
- Page 42 SPECIFICATIONS Type INVERTER HEATPUMP Model name AO A72LALT AO A90LALT Power source 3N ~ 400V, 50Hz Available voltage range 3N ~ 342V - 457V, 50Hz Starting current 12.5 Type × Quantity Propeller fan × 1 Airflow Cooling 9,300 10,700 rate Heating...
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Page 43: Dimensions
DIMENSIONS MODEL : AOA72LALT, AOA90LALT „ „ (Unit : mm) 690 (Bolt pitch) 530 (Bolt pitch) 8-12x17 (Hole) Top view Left view Right view A, C Front view Rear view - (02 - 02) -... - Page 44 KNOCKOUT HOLE POSITION „ „ (Unit : mm) Ø 34.5 Power supply cable port Ø 43.7 Power supply cable port Ø 50 Ø 22.2 Power supply Ø 34.5 Transmission cable port Ø 50 cable port Power supply cable port Power supply Ø...
- Page 45 VALVE POSITION „ „ (Unit : mm) Gas valve Ø 25.4 Liquid valve Liquid valve Gas valve Ø 12.7 D : Front view E : Left view ACCESSORY PIPE „ „ (Unit : mm) Liquid Liquid F : Left view G : Left view (Accessory pipe A setting) (Accessory pipe B setting)
- Page 46 INSTALLATION (FOUNDATION) „ „ • Install the unit horizontally (within 3 degrees). • Install 4 or more anchor bolts at the 8 locations indicated by arrows (Fig. A). • Place the left and right anchor bolts at a distance further away than 610 mm. (Excluding the case where anchor bolts are installed at 8 locations.) •...
- Page 47 CENTER OF GRAVITY POSITION „ „ Models : AO A72LALT, AO A90LALT „ (Unit : mm) ● : Center of gravity - (02 - 06) -...
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Page 48: Installation Place
INSTALLATION PLACE Caution When installing the outdoor unit, pay attention to the following items. ● To prevent stopping of operation by short circuit and worsening of performance and high pressure protection, refer to the installation space shown in the figure and secure enough space. ●... -
Page 49: When Install Near By Unlimited Height Wall
3-2. WHEN INSTALL NEAR BY UNLIMITED HEIGHT WALL SINGLE AND MULTIPLE INSTALLATIONS „ „ There are no restrictions on the height of the wall. ● „ The wall (without height restrictions) must not exist on the both sides (left / right) of outdoor ●... -
Page 50: When There Is An Obstruction Above The Product
3-3. WHEN THERE IS AN OBSTRUCTION ABOVE THE PRODUCT When there are obstacles above the product, keep the minimum installation height as shown in the figure and install the outlet duct. The efficiency might decrease when the outlet duct etc. are installed. Outlet duct 500mm... -
Page 51: Refrigerant Circuit
REFRIGERANT CIRCUIT MODEL : AO A72LALT, AO A90LALT „ „ - (02 - 10) -... -
Page 52: Wiring Diagrams
WIRING DIAGRAMS MODEL : AO A72LALT, AO A90LALT „ „ - (02 - 11) -... -
Page 53: Capacity Compensation Rate For Pipe Length And Height Difference
CAPACITY COMPENSATION RATE FOR PIPE LENGTH AND HEIGHT DIFFERENCE MODEL : AO A72LALT „ „ Pipe length (m) COOLING 0.832 0.798 0.901 0.878 0.855 0.939 0.916 0.892 0.869 0.846 0.811 1 Indoor unit is 0.978 0.954 0.931 0.907 0.884 0.860 0.825... - Page 54 MODEL : AOA90LALT „ „ Pipe length (m) COOLING 0.898 0.874 0.850 0.826 0.790 0.938 0.913 0.889 0.864 0.840 0.803 1 Indoor unit is 0.978 0.953 0.928 0.903 0.879 0.854 0.817 higher than outdoor unit 0.988 0.982 0.957 0.932 0.907 0.882 0.858...
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Page 55: Pipe Size Selection & Limitation
PIPE SIZE SELECTION & LIMITATION MODEL : AO A72LALT, AO A90LALT „ „ Size down Standard Size up Liquid pipes 12.70 (1/2) Pipe diameter 22.22 25.40 28.58 [mm (in.)] Gas pipes (7/8) (9/8) Max. piping length (L1) [m (m)] 75 (20) 75 (20) 50 (20) -
Page 56: Air Flow
AIR FLOW MODEL : AOA72LALT „ „ Cooling „ Number of rotations Air flow (r.p.m) 9300 2583 5474 Heating „ Number of rotations Air flow (r.p.m) 9300 2583 5474 MODEL : AOA90LALT „ „ Cooling „ Number of rotations Air flow (r.p.m) 10700 2972... -
Page 57: Operation Noise
OPERATION NOISE 10-1. NOISE LEVEL CURVE MODEL : AOA72LALT „ „ Cooling Heating „ „ NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC-15 1,000 2,000 4,000 8,000 1,000 2,000... -
Page 58: Sound Level Check Point
10-2. SOUND LEVEL CHECK POINT Microphone - (02 - 17) -... -
Page 59: Electric Characteristics
ELECTRIC CHARACTERISTICS Model AO A72LALT AO A90LALT Voltage Power supply Frequency *1) Max. operating current 22.8 25.8 Starting current 12.5 MCCB Capacity Breaker ELCB 30mA Leakage current 0.1sec or less Power supply cable Outdoor unit power supply cable Ground wire *1) The maximum current is the total current of indoor unit and outdoor unit. -
Page 60: Safety Devices
SAFETY DEVICES Model Protection form AO A72LALT AO A90LALT AC400V 15A Fuse (Main PCB) Circuit protection AC250V 3.15A Protector (FILTER PCB) AC500V 25A Indoor unit protection Fuse AC250V 20A Thermal protection program OFF : 112°C (Compressor temp.) ON : 80°C Compressor protection Thermal protection program OFF : 115°C... -
Page 61: External Input & Output
EXTERNAL INPUT & OUTPUT Input Output Connector Remarks Low noise mode ― CN131 Peak cut mode ― CN131 See external input/output settings ― Error status CN136 for details. ― Compressor status CN136 ― Base heater CN115 13-1. EXTERNAL INPUT ON/OFF of the "Low noise mode" and "Peak cut mode" functions can be specified by external signal. - Page 62 PEAK CUT MODE „ „ • Operation that suppressed the current value can be performed by means of the following on- site work. The air conditioner is set to the Peak cut mode by applying the contact input of a commercial ON/OFF switch to a connector on the outdoor control PC board.
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Page 63: External Output
13-2. EXTERNAL OUTPUT ERROR STATUS OUTPUT „ „ • An air conditioner error status signal can be output by means of the following on-site work. Circuit diagram example „ Outdoor Connected unit control PC board 1) Power supply ●Voltage (Chart sign=Vcc) : DC 24V or less Connector 2) Load Power... - Page 64 COMPRESSOR STATUS OUTPUT „ „ • Compressor operation status signal can be output by means of the following on-site work. Circuit diagram example „ Outdoor Connected unit control PC board 1) Power supply ●Voltage (Chart sign=Vcc) : DC 24V or less Connector 2) Load Power...
- Page 65 BASE HEATER „ „ • This output the signal when temperature goes down 2°C, and release at 4°C. Circuit diagram example „ connected unit P.C.B Base heater AC240V Connector (Black) *1: Connect to pin 1 and pin 3. No connection pin2 and pin4. *2: The allowable power consumption is 25W or less.
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Page 66: Function Setting
FUNCTION SETTING Caution Discharge the static electricity from your body before setting up the DIP switches. Never touch the terminals or the patterns on the parts that are mounted on the board. 14-1. FIELD SETTING SWITCHES Remove the front panel of the outdoor unit and the cover of the electrical component box to access the print circuit board of the outdoor unit. -
Page 67: Setting Method
14-2-1. SETTING METHOD (1) Turn on the power of the outdoor POWER/MODE Lamp: ON ERROR Lamp: OFF POWER ERROR unit and enter standby mode. MODE LED101 LED102 7 Segment POWER/MODE lamp lights up. (GREEN) (RED) LED Lamp: OFF LED105 LED104 (ERROR Lamp is off.) DIP switch MODE... - Page 68 (6) Again, referring to the Settings List shown below, press the SELECT button (SW108), and display the code number of the function you want to set on the LED104. Ex.) To select the Low noise operation setting. LED105 LED104 LED105 LED104 Next, press the ENTER button (SW109), and confirm the selection of the mode you want to set.
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Page 69: Peak Cut Mode
14-2-2. PEAK CUT MODE ENERGY SAVING LEVEL SETTING „ „ This operation saves the capacity and reduces the power consumption. Energy-saving level can be set by adding the contact input of commercially available ON-OFF change-over switch to CN131 connector (external contact input sold separately) located on the control board of outdoor unit. -
Page 70: Optional Parts
OPTIONAL PARTS Exterior Parts name Model No. Summary Use to operate the External input External connect UTY - XWZXZ2 and output function of Outdoor unit. Use to operate the External input External connect UTY - XWZXZ4 and output function of Outdoor unit. -
Page 71: Locally Procured Parts
LOCALLY PROCURED PARTS 16-1. AIR DISCHARGE DUCT PRECAUTION „ „ All the components/parts such as the duct, frame, and screws are to be locally procured. ● „ Do not install the duct where seasonal wind blow directly against to the discharge port. ●... - Page 72 DUCT INSTALLATION PROCEDURE „ „ Remove the top panel from the cabinet, and ● „ Duct make a ø6mm hole in each dowel of the top panel. (9 dowels in total of the right and left ones) Frame After drilling a hole in the dowel of the top panel, ●...
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Page 73: Snow Hood
16-2. SNOW HOOD In cold or snowy area, install inlet and outlet hood in order to maintain stable operation and avoid snow damage. PRECAUTION „ „ All the components or parts such as the snow hood, frame, and screws are to be locally ●... - Page 74 SNOW HOOD INSTALLATION PROCEDURE „ „ Installing the upper part of snow hood „ The upper part of snow hood can be installed in the same manner as for the duct. For ● „ details such as where to fix it, see the duct installation procedure. Using the fixing positions on the top panel, install the components such as the frame, ●...
- Page 75 SCREW POSITIONS ON THE SIDES OF SNOW HOOD „ „ (Unit : mm) Left-side View Front View Right-side View Rear View NOTES ON INSTALLING SNOW HOOD „ „ (Unit : mm) Make holes in the rear panel so as to provide good ventilation.
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Page 76: Central Drain Pan
16-3. CENTRAL DRAIN PAN HOW TO INSTALL CENTRAL DRAIN PAN „ „ All the components/parts such as the central drain pan and metal fittings are to be locally ● „ procured. Note that the refrigerant pipe cannot be come out of the bottom. ●... - Page 77 NOTES ON INSTALLING CENTRAL DRAIN PAN „ „ Make sure to design and install drain pan to cover the all drain hole on base completely. ● „ The gap between drain pan and base should be less than 2mm. ● „...